← Back to Search Severity: Medium

B0851

B0851: Power Window Circuit Malfunction

Fix Cost
$200 - $500
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
❌ No
Pro recommended
Category
Body
System

📖 What Does B0851 Mean?

The B0851 code indicates a malfunction in the power window circuit, which can cause windows to malfunction or fail to operate properly.
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Symptoms

  • Windows won't roll up or down
  • intermittent window operation
  • window stuck in position
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Common Causes

  • Faulty window regulator
  • faulty window switch
  • wiring issue
  • blown fuse
Fix Guide
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Possible Solutions

1. Check fuses and replace if blown. 2. Inspect and clean window switch. 3. Test window regulator for proper operation. 4. Replace faulty window regulator or switch if necessary.

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Common Questions About B0851

Q

Can I drive with code B0851?

A

You can drive for a short time, but should address code B0851 soon to avoid worsening the problem or failing an emissions test.

Q

How much does it cost to fix B0851?

A

The estimated repair cost for code B0851 is between $200 and $500. This includes parts and labor for most makes and models.

Q

Is this code easy to fix myself?

A

This repair is considered moderate. It may require specialized tools or significant disassembly. Professional help is recommended if you aren't an experienced DIYer.

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Complex codes like B0851 can be tricky. Don't risk it if you're unsure.

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Related Diagnostic Codes

Other codes that may appear with B0851

💡 Why These Codes Are Related:

  • Similar Issues: Same root cause or component failure
  • Related Problems: Often occur together due to system interactions
  • Sequential Codes: Progressive failure stages or multiple sensors
  • Same System: Components within the same automotive system